cnt

代码说明：

  在ise开发环境下，建立顶层模块和子模块的层次结构，其实现的功能是一个可复位课暂停开始继续的建议秒表(In ise development environment, establish a hierarchy of top-level modules and sub-modules, and its function is to achieve a resettable class resumes proposal to suspend the stopwatch)